Fig. 4

Activity staining of the purified ChrC (a) or ChrF (b) proteins electrophoresed on 10 % nondenatured polyacrylamide gel. Lane 1, enzymatic reaction in absence of inhibitor; lane 2, enzyme incubated with 10 mM KCN; lane 3, enzyme incubated with 10 mM H₂O₂; lane 4, enzyme incubated with 5 mM NaN₃